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Magnetic Disk Storage System With Structured Magnetic Head Slider

IP.com Disclosure Number: IPCOM000063397D
Original Publication Date: 1985-Mar-01
Included in the Prior Art Database: 2005-Feb-18

Publishing Venue

IBM

Related People

Authors:
Hinkel, H Kieven, G Mehrens, J [+details]

Abstract

During the operation of a magnetic disk storage system, the magnetic heads, used for reading and writing, start from and stop on the magnetic disk. In the start/stop phase, head and disk are in close contact, leading to wear and, after some time, to head crash (an irreversible destruction of the head/disk interface). By using specially shaped grooves 1, 2 on the Air Bearing Surface (ABS) 3 of the magnetic head slider, the slider take-off is accelerated, thus reducing the time of head/disk contact, and increasing the service life of the entire system. Oblique, tapered grooves 1, 2 are formed on ABS 3, and air is pumped through these grooves as the disks rotate. Figs. 1A and 2 are plan views of the ABS 3 of a magnetic head slider. Fig. 1B is a side view of the magnetic head slider of Fig. 1A. According to Figs.